Machine for  stamping lettebs



`MACHINEl FOR ySTAMPING LETTERS.

Patented M ar. 17, 1868.

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J.- C. VYLMAAS No CARL FISCHER, 0F HAMBURG, GERMANY.

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Be it known thattwe, 11C. W. MAAS and CARL FISHBR, citizens ofiHamburg, Germany, have invented a,

new and useful Machine forStamping- Letters and all other larticles whatsoever, capable of receiving a stamped `i|npre1;sion,` and foroancelling stamps on letters and all other articles v; and we do hereby declare that the following is afull, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, mailing a part of this specification, in \vl1icb-y Figure 1 is a vertical section of the entire machine, and V Figure 2 a. horizontal` section of the` r'ollers Aand' B. The machine'cousists tot" the following-named parts, acting as hereinafter described:

The chief parts arethe rollers A andB. In the roller A are sunk the spring-points b, each of which consists of a `spur surrounded by. a spiral spring, the outer end of the spur being provided witha point. Around `the -axle o f this roller is the fixed eccentric c, over which, when A turns, the under end of the spring-point 6 slips, and its spring is thereby pushed beyond the periphery of the roller, As soon as the spur of b has laid hold o f and borne away one of tho letters, Z; resting upon it, the rear end of the part b loses its point of support on theeceent'rio, c, and, by the action of the spiral spring on l, the needle is withdrawn from the surface of the roller." On the axle of this rollerJAv is another eccentric, which moves withthe axle and sets in motion the levenk, whichhas its turning-point in t, Itis the oilcelof this lever to push on slowly, from left ,to right, the box F, by the. motionof the stork's' bill on the ratchet n; The roller B has not afull surface, but its periphery isformedlonly by the three points of the stamp e, and by the two thin rubber condncting-wheels j, whichV seize and press against the fullsurface of the roller A, the letters moving between the twojollers A and B as `s'oon as theheedles let the letters go,'while the stamps e make a. legibleimpression on the letters. f is the bearin'g 0 the axle of the roller B, t It a'ords full support only ou the left side, whilst it has free play on the right,

in order to let B malte a backwardmovement,1when a thicker letter than usual passes between the'two rollers 'A 'and B. The spring g, which is strong enough vnot only to push B back to its point of support, but also to give the stamp e a strong impression, regulates the movement of B. Mis a stationary vertically-inclined board, 'situatedabove the roller'A, as shown in iig. 1, and employed, in conjunction'with a horizontallynclined board, M,;in order to form shopper `or receptacle, M, for the letters to be stamped. -The letters are piled upon the board M,'and their edgssrest against the surface :c of the board M, which serves as a guide to conduct the lettersto the throat or opening between the lower end of said board M and the periphery ot' the roller A.

Attached to the lowerend of Ltheboard' M is a series of thin springs, n, whos'e free ends bear upon the "peri phery of tho roller and permit thepassagebeneath them of but one letter at a time, the letter next above being held back by' said springs .until caught by the next feeding-needle after the lapse of the `proper interval from the taking of thelirst. The springen are reinforced and `properly held up to theirworking position by the' springs n; Over `the surface of the boardsA run bands, which pass over the grooved roller u, and et w, over small rollers, so that they continue to move downward, in order tokeep in constant movement toward the hopper the letters resting sgainstlthe board M. u isset in motion by a cord, c, froml the end of the axle of the 'sy-wheel c. V t

The inking-upparatus preferred in connection withthis machine consists of two steel and two rubber rollers. -The upper `steel roller, h,`i'orms, with ythe knife m, which is close against the roller, the ink-reservoir.

On the axle of this `roller is s double eccentric, which so vmoves the lever y that Athe .latter raises the following rubber roller, t, inox-'der totalie the ink fror'lt, and, as soon as the pressure ofthe leverrelaxes, to earryit to and transfer it uponthe distributing steel `roller la. Against the last Yconstantly rotates the outermost and lowest rubber inkiug-roller Miwhich gives cti' `the inkto `the stamps'e of the'roller B coming in contact 'with' it. .The motion'offthe inkingfrollers proceeds from a small wheel, q, connected with the cog-wheel'o. Ontbe opposite end (not visible in the drawing, 5g. 1).of tlieA axle of h, anden the opposite endof the inking-npparetns,

`is an endless screm'whiehextends to th'eaxle of the roller 7i, and moves said roller in the usual manner. F

is a box` into which the letters fall after they have been stamped.. It moves on the `railway D, and is put 'in ,motion as described, by the lever it.,

1. The roller A` and holders b, withtheirspringsand cams c, substantially as described. 'i

`2N. 4The cylinders A and B, stamps e, 'and yieldingpressnredevice f g, all substantially as described.

' K J. C. W. MAAS, CARL FISCHER. Witnessese t Renner Hmnrcnsss, 

